Belt wrapper



Aug. 2, 1949. T. WILSON 2,477,843

' BELT WRAPPER Filed Sept. ;2, 1944 SsnQtS-Sneet 1 5 Sheets-Sheet 2 u v.v M/A/fb. Q. I w WWW W V W YT "r. WILSON Aug. 2, 1949.

BELT WRAPPER I Filed Sept. 12, 1944 T. WILSON BELT WRAPPER Aug. 2, 1949.

5 Sheets-Sheet 3 Filed Sept. 12, 1944 Aug. 2, 1949. T. WILSON 2,477,843

' Y BELT WRAPPER I Filed Sept. 12, 1944 5 Sheets-Sheet 4 Aug. 2, 1949.MLSON 2,477,843

- BELT WRAPPER Filed Sept. 12, 1944 5 Sheets-Sheet 5 Fatenteci Aug.

2,477,843, n I "BELT-WRAPPER, v

Tea-mail, enastram;,.ass1aer m Bethle I 11cm Steel Company, acorporation, of Pennsylvania Application September 12, 1944, Serial No.553,726

14 Claims. (01. 242-78) My invention relates to a belt wrapper forstripmaterial for the purpose of intercepting the lead end of oncomingtravelling strip material and guiding it around a driven mandrel of atension reel until the frictional engagement between the mandrel andstrip is suflicient to permit the belt wrapper to be withdrawn from thereel during the remainder of the coiling operation, and is moreespecially adapted for use in forming coils of tin plated strip orthelike after a continuous electrolytic tin plating operation.

In electrolytic tin plating units of this kind the operation iscontinuous, the rear end of a fed coil being welded to the front end ofthe next coil to be fed through the unit and this-unit is usuallyarranged in the following sequence: a coil of strip mounted on asuitable holder is first fed through a welder which is adapted to weldthe ends of the coils together at the proper time,

thence over the entry looping'tower having its for cleaning the surfaceof the strip, from which it is advanced into a rinse tank and into theelecwhich gives riseto scoring 'of the surface of the strip, 7

With my belt wrapper'the lead end of the coil is securely held againstthe mandrel and insures tight. first wraps around'the same, after whichthewrapping device may be backed away from the mandrel and the coilcompleted.

While my invention is described as applied to the coiling of tin platedstrip material issuing from electrolytic tin plating units it is equallyapplicable to the coiling of strip delivered from a rolling mill or anyequipment designed for proctrolytlc bath, again through a rinse tank andI between pinch rolls and a delivery looping tower to allow slack orloop in the strip when a finished coil is cut off, then around shifterrolls and finally it is wound on the mandrel :of .a tension reel whichis adapted normally to pull the strip through the unit.

After a full coil has been formed on the mandrel of the tension reel thetop rollers of the delivery looping tower are lowered to allow slackinthe strip between the tension reel and the delivery looping tower andthe strip is cut at this point.

The coil is then by suitable mechanismejected from the tension reel. Allof theabovees-sing strip material.

One object of my invention is to provide a meansfor rapidly engaging anddisengaging a mandrel of a tension reel whereby the lead end portion ofthe strip may beheld and rapidly and erliciently coiled with the leastamount of effort on the part ofthe operator.

Another object of my. invention is to provide a belt wrapper forproducing the initial tight wraps around the coiling mandrel of atension reel to prevent slipping and scoring of the strip being coiled.

A further object of my invention is to provide I apparatuswhich willallow the strip to be immediately wrapped around the mandrel of thetension reel without preliminary shearing of the ends or using agripping groove or the like usually associated with reels now in use,and without stopping the rotation of the reel so that a veryvshortperiod of time is required to wrap a sufiicient number of turnsaround a mandrel of the reel to securely hold the strip in windingcontact therewith.

Another object of my invention is to provide means for causing thepivoted members of the fastening device used on the mandrel of the reel.stopped and even with experienced workmen several minutes are consumedbefore the end of cially desirable speeds. I

If the moving strip on themandrel is not securely held it results inslipping of the coil In this manner the mandrel has to bebelt wrapperto' swing the belt into position for engaging the mandrel and forpositively holding Still another object of my invention relates to thebelt take-up to give the required belt tension. With these and otherobjects in view which will become more apparent in the followingdesc'ription and disclosure, this invention comprises the novelconstruction and combination hereinafter describedand more particularlypointed out and defined in the appended claims.

objects of my invention I will now in order to make the same more clear,refer to the annexed 3 the sheets of drawings forming a part of thisspecification and in which like characters of reference denote likeparts.-

Figure 1 is a top plan view of my improved belt wrapper embodying theinvention.

Fig. 2 is a side elevation.

Fig. 2a illustrates the angle and manner of threading the strip tothemandrel whenashifter roll is used.

Fig. 3 isa vertical longitudinal section taken on the line 2-2 of Fig.1.

Fig. 4 is an elevation of the arm.

swinging double arm.

Fig. 6 is an elevation of the swinging double link; '7 V Fig. 7 is anelevation of the take-up arm for giving the required belt tension.

Fig. 8 is a side elevation of the take-up arm.

Fig. is a side elevation of the swinging double Fig. 9 is a longitudinalsection of one of the rollers having endflanges.

Fig. 10. is a longitudinal sectionof one of the rollers without endflanges.

Fig. 11 is a detail of one of the keeper plates.

Fig. 12 is a side elevation of the pivoted housing member detached;

Fig. 13 is a top plan viewof the pivoted housing member shown in Fig.12. i

Fig.. 14 is a top plan view of the crescent shape arm which is adaptedto be pivoted to the housing member.

'4 centric with the mandrel 2i and is adapted to partially surround saidmandrel II when the belt wrapper is in its forward position.

The upper forward end of the housing is supported by means of a shaft 22having a roller 33 mounted thereon. Said shaft 32 has its ends mountedin bearings 34 near the upper offset ends of the side bars 25 of adouble link 36 which are connected together at their upper and lowerends by tubular members 21 and 38 respectively, and the lower portion ofthe side bars 25 are further connected by means of a web plate 39.

A bearing is secured to the lower end of each side bar 35 for receivinga shaft 40 which has its end supported in the webs of the channel shapedside members 2 of the base frame I.

I A shaft 4| is supported in hearings in the lower forward ends of theside plates 21 and is adapted to support acrescent shaped arm 42 havingspaced side members 43 connected together by means of channels 44 andshafts 45, 48 and 41 upon which are mounted rollers 48, 49 and 50respectively. The lower forward end portions of the side plates 21 arealso connected by means of a shaft II for supporting a roller 52.

The rollers 2i, 24, 48, 49, 50 and 52 are preferably slightly crowned asindicated and carry an endless'belt 52 that is held taut at all times byFig. 15 is a top plan view of the crescent shaped arm shown in Fig.14,and 3 Fig. 16 is a modified form of a crescent shaped arm used with ashifter roll with an alternate threading.

Referring now to the various characters of reference on the drawings,the numeral I indicates the base frame of rectangular shape upon whichthe belt wrapper is mounted having longitudinally extending channelshaped side members 2 which are connected transversely by channels 2 andplate members 4. Mounted on top and connecting the channel shaped sidemembers 2 at one end is a platform 5 upon which is mounted centrallyspaced pedestal supports 6 having journal bearings for receivingtrunnion extensions I, of an air cylinder 8 having a piston 9, with apiston rod ID, the outer endof which is pivoted at H to a pair of websl2 of a double arm I2. The double arm l3 has side plate members l4 whichare connected together at the lower portions by means of transverselyextending web plate members It and near the top by an angle it. The sideplate members 14 each have a bearing I'l secured to its lower end forreceiving a shaft it having its ends extending through and supported inthe channel shaped side members 2. A bearing [9 is secured to the upperend of each side plate memsupport the ends of a shaft 24 having a roller25 mounted thereon. This shaft 24 is also adapted to support the rearend of a pivoted housing 26 having side plates 21 connected together bymeans of transversely extending web plates 28 and angles 29. Theforward'end 'of each of the side plates 21 of the pivoted housing 26have an are shaped recess 20 formed therein which is conmeans of aroller 54 mounted on a shaft 55 supported in the swinging end of theside bars 56 of a take-up arm 51 which is weighted as at 58 to producetension on the belt. The opposite ends of said side bars are connectedtogether by means of a tubular member 9 and are pivoted on a shaft 60having its ends supported in the side plates 21 of the pivoted housing25.-

I prefer to make the rollers 2i, 24, 33 and 52 with flanged ends and therollers 48, 49 and 50 which are carried by the crescent shaped armwithout flanges but they may all have flanged ends if desired.

As indicated in the drawings all the ends of the shafts for the rollersand pivoted arms are provided with keepers 8| to hold the shafts in afixed position.

In Figs. 2 and 2a I have indicated threading the strip to the mandrel ofthe reel at two different angles. The usual angle is shown in full linesas at 62 in Fig. 2, and an alternate threading when a shifter roll 63 isused is indicated at 64 in Fig. 2a, in which case theouter end 55 of thecrescent shaped arm 42' has to be shorter as more clearly illustrated inFig. 16 of the drawings.

The mandrel II is a well known collapsible type and is rotated by meansof a motor having a brake mounted on the reel drum as at 61. The mandrelexpands when the reel shaft is rotatin in the coiling or winding updirection. To collapse the mandrel, the brake is applied to the reeldrum, and the reel shaft is reversed. The coil 68 can then beremovedfrom the mandrel and be supported on the cradle 69 and then transferredto any desired point.

Having thus given a detailed description of my invention I will nowdescribe briefly its operation. Assuming that the parts are in theposition shown in dotted lines in Figs. 2 and 3 with the mandrel 2|expanded and revolving slowly, the belt wrapper is then moved forward asa unit by means of the air cylinder 8 and connections from thenon-operative to the reeling position as shown in full lines on thedrawings. When the top roller 48 and endless belt 82 at one end of thecrescent shaped arm 42 contacts the mandrel it causes the lower rollerIt at the other end of I a "mandrell-of a reel; a" belt I wrapper{ad'a'p movement'abo link pivoted; and its' -uppem the arm to swingupward and hold the endless I belt 53 around'the bottom half of themandrel 1 and by means of the roller 33 around'the back portion of themandrel in position to receive the strip. The end of the strip is thenentered manu- =5 ally between the underside of the endlessv belt 53 andtheta! Oi the'mandrel. After a'few wraps suflicient to grip the strip onthe mandrel, the

belt ,wrapper must be moved-back again as a unit to the non-operativeposition asindicated in 10 limited to the exact construction'shown" anddescribed, but'may usesuch substitutiona r'nodi 15 flcations orequivalents thereof, as are embraced within he scope or my invention, oraspointed Having thus described my invention, "what fI- ent'isi p 1. Ina, machine for coiling strip or the like-'0 1 rate w hit e mandre i qm lfa-r Ira-me, ahousihgpivotally;connected for swingin ie the base.mew-arms? ha lates "a double J- arm pivoted to th claim asnewiandldesiretosecure-byLette Pat fgg otthe crescent shaped arm for thebelt to'partially encircle the mandrel, and fluid pressure [actuatedmeans pivotally connected to the double ing pivotally mounted forswinging movement, a

plurality of rollers carried by the housing, a crescent shaped armpivoted centrally to the lower forward end of the 'housing,'rollersmounted in a each end of the crescent shaped arm. an endless beltmounted on the rollers carried by the housing and the crescent shapedarm, means for maintaining the belt taut atall times in ,con-

- tact with the rollers and adapted to swing the vrear end of thecrescent shaped arm upward rwhen the belt wrapper is withdrawn irbm themandrel and means'for engaging said rear roller ofthecrescent shaped armto raise the rollerand belt lat-the opposite end of the crescent shaped'arm for the belt to partially encircle the mandrel.

machine for coiling stripor the like on uv mandrelof a'reel; abelt'wrapper adapted to cooperate with said mandrel to form a guide forthe strip;-- fc0mprising a base frame, a housing piv-,

"- iota'lly'mounted above the baseiframe a plurality v of /rollerscarried by: the housing, a crescent "'-carried by:- the housing .and thecrescent shaped inging movmentgia double its loweendstmth'esb-asezframe:

of the housi for isupportingatlther foriwardaend.

n i termediate' pointitosthe iowerrforwalid the spaced verticalfs'ideljjlates dfthe house t; r A;

mg, nendl'es'sbelti carniedby dahecrollers mou. ted

ifr theh'ousingdand 'ithexcrescenteshapedLarmrea .5;

times' ilr contact witli zthe irolleisgameansaiomeiiz gaging said rearroller of the crescent shaped arm to raise the iroller and belt at theopposite end. 75

ham

'ortionfito the uppere-forwardi end:

the mandrel-toraisethearollen andbeltat the opbelttosspartially;encircle the-mandrel when the belt wrapper is advancedtolengagethe mandrel.

yes

shapedg arm f pivoted centrally to the n housin ;v rollers-=rnounted ineach end 10f thev crescentshaped arm,= anendless belt mounted onthe;rollers army-means for swinging-the housing, and ibelt to a'nd fr'omcooperative relation to-the mandrel; means'ior' swinging the rear end,of-the crescent shaped arm upward when the i-belt wrapper is Ywithdrawn fromlthe mandrel, saidprollervatthe rear end ;ofrtheucresc'ent. shaped arm engagingposi't'e send; ofithe.crescentshaped. liarm for; the;

4 cooperateawlth: said mandrelfito tor n1 a guide io'r; the; stripacompisine; as ase ram a h si n vspac dren ca sid cnlie io l to ether. tercanec inewrfl a em s iii itf r1 11 Y 7 mandrel of a reel, a belt wrapperadapted to cooperate therewith, comprising a base frame, a housingpivotally-connected to thebase frame for'swinging movement having spacedvertical side plates joined together by interconnecting -ried by therollers, means for swinging the rear end of the crescent shaped armupward when the belt wrapper is withdrawn from the mandrel,

said roller-at the rear-end of the crescent shaped arm adapted to beactuated by the mandrel to raise'the roller and'belt at the opposite endof the crescent shaped arm for the belt to partially encircle'themandrelwhenthe belt wrapper is advanced to engagethe mandrel, and meansfor swinging the bcltwrapperto and from cooperativerelatlontosaidmandrel.

vasmach ne-fer, starting the'coiling of strip l or the like onva-mandrel of a reel, a belt wrapper adapted tocooperate'withthemandrel, comprising a base frame, a housing pivotallyconnected to the base. frame for swinging movement having spacedvertical side plates joined together by interconnecting-cross members, aplurality of rollers mounted between the vertical side plates andmovable withthe housing, a crescent shaped arm pivoted at'anintermediate point to the vertical side plates of the housing, rollersmounted on the inner and outer ends of the crescent shaped-arm anendless belt carried by the rollers actuated by contact with themandrel, for engaging the outer roller for raising the inner end of thecrescent shaped arm when the belt wrapper-is withdrawn'from cooperativerelation to the mandrel and for engaging the inner roller to raise, theroller on-the outer end of the crescent shaped arm :to cause the belt topartially encircle the mandrel when the belt wrapper is advanced toengage :the mandrel, and means for swinging the belt wrapper to and"from cooperative relation to said mandrel.

8; A machine for starting the coiling of strip or the like one mandrelof :a reel, a belt wrapper adapted to cooperate therewith, comprising abase frame, a housing pivotally connected to the base frame adapted forswinging movement having'spaced vertical side plates joined together byHa mandrel ofa reel, 'a belt wrapper adapted tocooperate therewith,comprlsing a base frame,

ing movement having spaced vertical side plates joined together byinterconnecting cross members, a plurality of rollers mounted betweenthe vertical side plates and movable with the housing, a crescent shapedarm pivoted at an intermediate point to the housing between the side 7plates, rollers mounted at each end and. at an intermediate point of thecrescent shaped arm, anendless belt carried by said rollers having aportion between them adapted to partially encircle the mandrel, theportion of the belt leading to the mandrel from the adjacent rollerbeing adapted to guide the front end of oncoming metal strip intocontact with the mandrel,

means for swinging the beltwrapper to and from' I cooperatlve-relationtosaid mandrel, means for raising the roller .and.rear end of the crescentshapedarm when the belt wrapper is withdrawn from the mandrel, andmeansactuated by the mandrel for engaging said rear roller of the crescentshaped arm to raisethe roller. and belt at theouter end or the crescentshaped arm to cause'tlie belt toxpartially encircle the mandrel when:the belt wr pper is advanced to engage the mandrel. I V

10. A machine for coiling strip or the like'on a housing pivotallymounted for swinging movement on the base frame having spaced verticalside plates joined together by interconnecting cross members, a crescentshaped arm having a roller at each end pivoted centrally to the sideplates of the housing,- a plurality of rollers interconnecting crossmembers, a' plurality of rollers mounted between the vertical sideplates and movable with the housing, a crescent shaped arm pivoted at anintermediate point to the vertical side plates of the housing, rollersmounted mounted on and movable with the housing, an

endless belt carriedby the rollers mounted on the housing and crescentshaped arm, said endmandrel, means for maintaining the belt on therollers taut. at all times, fluid pressure means pivotally mounted onthe base frame and connected to the housing for swinging the beltwrapper to and from cooperative relation to said mandrel, means forswinging the rear end of the crescent shaped arm upward when the beltwrapper is withdrawn from the mandrel, and means actuated by the mandrelfor engaging said roller at the rear end of the crescent shaped arm toraise the roller and belt at the outer endof the crescent shaped arm forthe belt to partially on the inner and outer ends of the crescent shapedarm, an endless belt carried by the rollers,

means engaging the belt to maintain said belt tautat all times inrelation to the rollers and adapted .to raise the inner end of thecrescent shaped arm when the belt wrapper is withdrawn from cooperativerelation to the mandrel, said belt wrapper to and from cooperativerelation to said mandrel;

9. A machine for initially/starting the coiling of strip or the like ona mandrel'oi' a reel, a beltwrapper adapted tocooperate therewith,comprising abase frame; a housing pivotally connected to the base frameand adapted for swinginner roller actuated by the mandrel to raise thevencircle the mandrel when the belt wrapper is advanced to engage themandrel.

11. A machine for coiling strip or the like on a crescent shaped armpivoted at an intermediatepoint to the lower front end portions of theside plates of the housing adjacent to the recesses, rollers rotatablymounted in each end and at an intermediate point of the crescent shapedarm, a plurality of rollers rotatably mounted in the housing and movabletherewith, an endless belt carried by the rollers, means for maintaininga constant tension on the belt in relation to the rollers and adapted toswing the rear end of the crescent shaped arm upward when the beltwrapper is withdrawn from the mandrel. said roller at the rear end ofthe crescent shaped arm being adapted to be actuated by the mandrel toraise the roller and belt at the front end of the crescent shaped arm tocause the belt to partially encircle the mandrel when the belt wrapperis moved forward into strip guiding position.

12. A machine for coiling strip or the like on a mandrel of a reel, abelt wrapper adapted to cooperate with the mandrel, comprising a baseframe, a. housing pivotally mounted for swinging movement on the baseframe, a plurality of rollers rotatabl mounted on the housing, acrescent shaped arm pivoted to the housing, rollers mounted in each endof the crescent shaped arm, an endless belt carried by the rollersadapted to be actuated by the mandrel for engaging the rollers in theends of the crescent shaped arm to cause the belt to partially surroundthe mandrel to guide the strip thereon or to withdraw the belt from themandrel, means for engaging the endless belt for maintaining the belttaut at all times in contact with the rollers, and fluid pressure meanspivotally mounted on the base frame and connected to the housing forswinging the belt wrapper to and from cooperative relation to saidmandrel.

13. A machine for coiling strip or the like on a mandrel of a reel, abelt wrapper adapted to cooperate with the mandrel, comprising a housingpivotally mounted for swinging movement, a plurality of rollersrotatably mounted on the housin a crescent shaped arm pivoted centrallyto th housing, rollers mounted in each end and at an intermediate pointin the crescent shaped arm, an endless belt carried by the rollers, aweighted take-up arm pivoted to the housing at one end, a roller mountedfor swinging movement in the other end of the talEe-up-arm for engagingthe endless belt for maintaining the belt taut at all times in contactwith the rollers, said endless belt adapted to be actuated by themandrel for shaped arm to cause the belt to partially surround themandrel to guide the strip thereon or to withdraw the' belt from themandrel, said endless belt having a portion between said rollers in the'crescent shaped arm adapted to partially encircle the mandrel from theadiacent roller being adapted to guide the front end of the oncoming 7and from cooperative relation to said mandrel.

14. A machine for coiling strip or the like on the mandrel of a reel, abelt wrapper adapted to cooperate with the mandrel, comprising a baseframe, a housing having spaced vertical side plates joined together byinterconnecting cross members, a double arm having side plate memberswith their lower ends pivoted to the base frame and their intermediate:portions pivoted by means of a shaft to the inner end of the housing, ashaft having a roller mounted thereon connecting the upper ends of thedouble arm, a double link having side bars with their lower ends pivotedto the base frame and their upper ends pivoted on a shaft for supportinga roller and the front end of the housing, a recess formed in the frontend of each side plate of the housing adjacent to the mandrel adapted toreceive the mandrel when the housing is moved into strip guidingposition, a crescent shaped arm pivoted centrally to the lower front endportions of the side plates of the housing adjacent to the recesseshaving side bars joined together by interconnecting cross members, aroller mounted between the side bars at each end and at an intermediatepoint, a plurality of rollers mounted between the side plates of thehousing, an endless belt carried by the rollers, means for maintaining Ithe belt taut in contact with the rollers atall 9 to engage the mandrel.

engaging the rollers in the ends of the crescent 46 the mandrel, theportion of the belt leading to TOM WILSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Great Britain June 29, 1942

